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1212102201022 = 21257914817921
BaseRepresentation
bin10001101000110110111…
…010111100111010111110
311021212122111010121202221
4101220312322330322332
5124324341130413042
62324455420435554
7153400010466646
oct21506672747276
94255574117687
101212102201022
11428060102919
12176ab66a8bba
138a3ba983abb
144294794b526
15217e23e7d67
hex11a36ebcebe

1212102201022 has 8 divisors (see below), whose sum is σ = 1818168132672. Its totient is φ = 606046156800.

The previous prime is 1212102201019. The next prime is 1212102201029. The reversal of 1212102201022 is 2201022012121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1212102200987 and 1212102201005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212102201029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2157379 + ... + 2660542.

It is an arithmetic number, because the mean of its divisors is an integer number (227271016584).

Almost surely, 21212102201022 is an apocalyptic number.

1212102201022 is a deficient number, since it is larger than the sum of its proper divisors (606065931650).

1212102201022 is a wasteful number, since it uses less digits than its factorization.

1212102201022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4943714.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1212102201022 its reverse (2201022012121), we get a palindrome (3413124213143).

It can be divided in two parts, 121210 and 2201022, that added together give a palindrome (2322232).

The spelling of 1212102201022 in words is "one trillion, two hundred twelve billion, one hundred two million, two hundred one thousand, twenty-two".

Divisors: 1 2 125791 251582 4817921 9635842 606051100511 1212102201022